Deep well pump



June 30, 1931. J SHUTT 1,812,667

DEEP WELL PUMP Filed April 19. 1950' a I 27 z" l,

[WI/67V]??? fa/VA A. die 0r? Patented June 30, 1931 PATENT ,or cs.

" JOHN E. SHUTT, OF STUTTGABT, ARKANSAS DEEP WELL; rum

Application ifled 1 m 19, 1930. Serial No. 445,577.

This invention relates to pumps and more particularly to deep wellpumps.

especial relation-to an auxiliary or sand valve for use in connectionwith the traveling and 5 standing valves of the usual-pumps.

. In deep well pumps of'the ordinary types a well casing extendsdownward from the surface of the earth adjacent to the bottom of thewell. This casing carries at or near its 1 lower end a pump barrel, inwhich a traveling valve or plunger is slidab-l. disposed. This plungerwhich includes a c eck valve is car-. ried on the lower end of a pumprod which extends upward toithe surface of the ground and by which it isreciprocated. Disposed below this plunger or. traveling valve is a checkvalve or standing valve. On the upward stroke of the traveling valve,oil or water is drawn ast the standing valve into the lower end of thecasing. On the subsequent downward stroke this liquid passes the checkvalve therein and is subsequently raised while at the same time anadditional supply of liquid is .drawn as before into the casing.

Repetition of the cycle eventually raises the liquid to the surface anddischarges it.

Lt often happens however especially in oil wells that a veryconsiderable volume of gas accompanies the oil and in such case this gas0 is trapped between the standing valve and the traveling valve andsimply expands and contracts with the stroke. The gas fails in suchcycle to pass the check valve of the travelin valve on its downwardstroke because of tlie weight of the-column of oil superposedthereabove.

Even though gas does not accumulate in the working barrel the hammeraction of the downwardly moving column of oil above the K40travelingvalve, this column often being as much as 5,000 feet in height,is so severe as to often burst the casing.

The objects of the present invention are (a) To provide a valve arrangedabove the traveling valve to support the weight of the superposed columnand thereby relieve the traveling valve on its downward stroke ofsuchweight while permitting read passage of oil and gases therethrough uringthe upward stroke;

It has (b) To provide in such a valve a stufiing box through which thepump rod maybe reciprocated; (0) To provide means for preventing sandfrom returning to the working barrel and 010 ging it;

' a To generally improve the design and construction of such a valve.

The means by which the foregoing and other objects are accomplished andthe manner of their'accomplishment will readily be understood from-thefollowing specification on reference to the accompanying drawings, inwhich:

Fig. 1 is a sectional elevation onthe center 65 line showing the workingbarrel and parts associated therewith.

Fig. 2 is a fragmentarysectional elevation on the same scale showing themovable parts of the sand valve in elevation.

Fig. '3 is a sectional plan view taken on the line II-III of Fig. 1.

Referring now to the drawings in which the various parts are indicatedby numerals,

10 is the lower end of the pump'casing, within'which a pump rod 11extends downward from the surface of the ground, the rod being'operatedin any usual or desired manner.

. Secured to and depending below the casing 10 is a pipe coupling 12into the lower end of which the pump barrel 13 is screwed, this couplingbeing hereinafter designated as the sand valve cou ling screwed into andsupported by the ower end of the barrel is a second coupling 14hereinafter designated as the standing valve coupling.

The standing valve coupling 1 1 has'an integral annular boss 15therewithin. This boss is conically bored to form a seat to receive thecorrespondingly tapered lowered end of a standing valve 16, which valvemay be a usual ball check valve.

Disposed within the barrel 13 is a traveling valve or plunger 17, whichplunger is provided with a ball check 18 and carries cup leathers 19contacting with the wall of the barrel. At its upper end the plunger issecured to the lower end of the pump rod 11, in any usual or desiredmanner.

Disposed around and slidably mounted on the piston rod 11 is a sandvalve 20 the up er end of which is hollowed out to form a stu ng box toreceive packing 21, this packing being held in lace by a gland 22, whichin turn 'is secured y a bonnet 23. The upper portion of this bonnet ishollowed out to receive a cup leather 24 which is held in place by aretaining rin 25. The lower end of the sand valve 21 is a apted to forma closure with an annular seat 26 carried by the sand valve coupling 12.Preferably this seat is formed in tube, whereby vertical passage ofliquid upward through the thimble will tend to rotate the valve. Thelower ends of these vanes extend laterally beyond the bodies thereof, sothat these ends 32 underlie the thimble 27 and limit the travel of thevalve. They are also available to remove the thimble 27 from its seatwhen-the pump rod is removed.

As the plunger rises, the liquid is drawn upward into the standing valvecoupling 14 and on succeeding strokes passes the ball check 8 and isthen further raised past the sand check valve 20. Continued operation ofcourse forces the liquid to and discharges it above the surface of theground, but during such operation return flow and the consequent thrustof such return flow is prevented by the sand check valve and the plungercheck is relieved of pressure during its downward stroke.

Gas which is drawn in with the oil through the standing valve is able toraise the ball valve 18 and passes above the plunger. Owing to the factthat the stroke of the traveling valve is very much greater than thespace between the lower end of the traveling valve and the upper end ofthe standing valve, and to the further fact that gas is ordinarily onlya small part of each charge, all the gas passes above the travelingvalve and is eventually forced outward through the sand valve afterwhich it is free to pass upward to the surface of the ground.

During the passage of the liquid through the sand valve the angularityof the blades causes the valve to rotate, exerting grinding action onthe seat.

At any time should the condition arise that it is desired to remove thetraveling valve from the well the pump rod is raised until the lugs 32at the bottom of the vanes engage the thimble 27 and such movement beingcontinued the thimble is dislodged from its seat and thereafter bymovement removed from the well, thus permitting the plunger and standingvalve 16 to be removed.

It is to be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same and thatvarious changes inshape and size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having described my invention, what I claim is 1. In a pump, whichincludes a casing, a pump rod, a pump barrel, a traveling valvetherewithin secured to said rod, an annular tapered seat formed withinsaid casing, and above said traveling valve, an annular thimblecorrespondingly tapered, seated therewithin, a sand valve slidablymounted on said rod, disposed above and seating on said thimble, atubular sleeve slidably disposed around said rod, secured to anddepending from said sand valve and below said thimble, and a pluralityof blades integral with said sleeve and radiating therefrom, said bladeshaving projecting lugs adapted to engage the bottom of said thimble andlimit the upward movement of the valve.

2. In a pump, which includes a casing, a

pump rod, a pump barrel, a traveling valve therewithin secured to saidrod, an annular tapered seat formed within said casing, and above saidtraveling valve, an annular thimble correspondingly tapered, seatedtherewithin, a sand valve slidably mounted on said rod, disposed aboveand seating on said thimble, a tubular sleeve slidably disposed aroundsaid rod, secured to and depending below said sand valve, and aplurality of blades integral with said sleeve, radiating therefrom, intoproximity with said thimble, and angularly disposed with regard to theaxis of said rod, whereby channelways angularly disposed with relationto the flow of liquid therethrough, are established.

In testimony whereof I hereunto afiix my signature.

JOHN E. SHUTT.

